# User Portlet

Discussions |
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There is the same problem with SignedRankTest. By default, MannWhitneyTest uses asymptotic statistics, which is not appropriate for such small samples. Using instead the method "Permutations", with a reasonable number of permutations, (50, 100),... |

Thanks a lot for sharing! I frequently use your nice MonadicQuantileRegression workflow. |

Hello everybody! Since the end of last week, I can't get financial data associated with Orange (or ORA.PA), which suddenly became an unknown entity. I met this issue for the first time, and I have no idea how to fix it! &[Wolfram Notebook][1] ... |

Hi! Series is a possibility, but remember that Series expansions are LOCAL and focus on the neighborhood of some point of interest. Such series do not converge everywhere! In your case, you can compute two series, focusing either on the center... |

Hi David! You could also try Loess : `https://resources.wolframcloud.com/FunctionRepository/resources/Loess/ , read that post about SMOOTHING splines ... |

Bounds are necessary. Integrate[x^2/E^(x^2/(2*w^2)), { x, -\[Infinity], \[Infinity]}, Assumptions -> w > 0]/ Integrate[E^(-(x^2/(2*w^2))), { x, -\[Infinity], \[Infinity]}, Assumptions -> w > 0] works perfectly. |

Hi! Consider the functions f[Theta_, Phi_] := a*Cos[Theta]^3 + b*Cos[Theta] Sin[Theta]^2 - c*(Cos[Phi] - 3 Cos[3 Phi]) Sin[Theta]^3; and Sin[Theta]*f[Theta, Phi] I'm interessed in computing the volume inside the... |

Hi, actually, this is function expressed in polar coordinates, and "f" only gives the radius (which can be negative). Defining f[Theta_, Phi_] := a*Cos[Theta]^3 + b*Cos[Theta] Sin[Theta]^2 - c*(Cos[Phi] - 3 Cos[3 Phi])... |

Hello, For the nth time, I accidentally changed (I don't know how) the size of characters of a large notebook, which is now illegible! How can I restore it? Thanks, Claude |

Thanks, Eric; in fact, it is merely a problem of missing data, not of date! I've been confused by the diagnosis of Mathematica: Failure[DateObject, Association[ "MessageTemplate" :> MessageName[DateObject, "str"], ... |